"They had suspicion he might kill himself at his son's grave," said Sheriff's Office spokeswoman Jane Watrel.

Investigators said Paris shot and killed 34-year-old Liza Nicole Adderly at the Dr. P. Phillips Community Park on Wednesday afternoon.

Paris' son, a teen at the time, was hit by a car and killed while crossing an Orlando street in January 2012.

WESH 2 uncovered a legal judgement against Paris that shows 18 months ago a judge in Orange County found him in default of a bank credit line and ordered him to pay more than $43,000, plus interest and legal fees.

Paris and Adderly separated a month ago and deputies said they had a fight two hours before the shooting in the park.

Adderly's murder is a somber reminder of the increase in deadly domestic violence cases documented in Florida Department of Law Enforcement year to year statistics: In 2012, Orange County had a dozen domestic violence related killings.